A wave crest passes the boat every 4.0seconds. Calculate the frequency of the wave in hertz

According to the rule of 72 and about how many years will $78 be worth $39 if the rate of inflation is 5.8%

You have been asked to recommend a alternative source of energy that your town could use to generate electricity. Describe the renewable resource that you believe would be best for your town.

His is a force that acts over a distance, can not be seen, and causes like poles to repel and opposite poles to attract. What is this force? A) gravity B) friction C) magnetism D) air resistenace

How would you measure the potential difference across a resistor? A. Connect a voltmeter in parallel with the resistor B. Connect an ammeter in series with the resistor C. Connect a voltmeter in series with the resistor D.

Types of energy transferred from mechanical waves

Scientists who study races and their origins are called A. anthropologists. B. ethnologists. C. paleontologists. D. sociologists.

Why are telescopes that detect non - optical radiation useful for studying objects in space

Which of the following is not an application of Doppler technology? police speed guns weather radar ultrasound imaging of the liver determining the motion of a star

For a constant voltage, increasing the resistance will cause the current to decrease. true or false

Which of the following is an example of a testable scientific hypothesis? A) Why do plants grow better in the Sun than in the shade? B) Peacocks have prettier tail feathers than pigeons do.